<Given the above, how useful would this data be to people? If there is no demand, I likely won't go too far with it. I've got Alabama done, and I've downloaded a few more states (a state takes me a couple of hours to fully process start to finish).>
This is a fantastic endeavor you are undertaking. I have a problem though. I run Linux. I have installed your IbycusUSA.exe under "wine" but cannot get my Garmin Venture HC to be detected. So, I had a 1.6 Gig hard drive laying around (from the old days) and installed XP on it. After removing all programs, including IE and Outlook, I could only come up with 280 Megs of free space. I live in Oregon and would like to know if you are planning to do my state. Also, I would like to know if you are taking donations for the bandwidth of your help desk on your web site to kind of show our appreciation for the time-consuming task you are undertaking.
A job well done is an understatement.